Evidence map›Paper›PMID 39673603›Full record

ArticleEuropean journal of nuclear medicine and molecular imaging2025

Validation and clinical impact of motion-free PET imaging using data-driven respiratory gating and elastic PET-CT registration.

André H Dias, Joshua Schaefferkoetter, Josefine R Madsen, Trine Ø Barkholt, Mikkel H Vendelbo, Anders B Rodell, Noah Birge, Paul Schleyer, Ole L Munk

Abstract readValidation Study
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In one paragraph

Article in European journal of nuclear medicine and molecular imaging, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.

0numbers the graph read from it
0cells of the map it votes in
3citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

3 citing papers in PubMed.

  1. Review
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

André H DiasDepartment of Nuclear Medicine & PET Centre, Aarhus University Hospital, Aarhus, Denmark. andre.dias@auh.rm.dk.ORCID 0000-0003-3184-3468
Joshua SchaefferkoetterSiemens Medical Solutions USA, Inc, Knoxville, TN, USA.ORCID 0000-0001-8249-4865
Josefine R MadsenDepartment of Nuclear Medicine & PET Centre, Aarhus University Hospital, Aarhus, Denmark.ORCID 0009-0007-9294-0399
Trine Ø BarkholtDepartment of Nuclear Medicine & PET Centre, Aarhus University Hospital, Aarhus, Denmark.ORCID 0000-0002-7415-6724
Mikkel H VendelboDepartment of Nuclear Medicine & PET Centre, Aarhus University Hospital, Aarhus, Denmark.ORCID 0000-0003-0431-2522
Anders B RodellSiemens Healthcare A/S, Aarhus, Denmark.ORCID 0000-0002-5698-1683
Noah BirgeSiemens Medical Solutions USA, Inc, Knoxville, TN, USA.ORCID 0000-0003-1894-5494
Paul SchleyerSiemens Medical Solutions USA, Inc, Knoxville, TN, USA.ORCID 0000-0002-5458-4748
Ole L MunkDepartment of Nuclear Medicine & PET Centre, Aarhus University Hospital, Aarhus, Denmark.ORCID 0000-0002-7232-5088

Funding

Siemens Medical Solutions USA Siemens Medical Solutions USA
6 · The paper itself

Abstract

purposeClinical whole-body (WB) PET images can be compensated for respiratory motion using data-driven gating (DDG). However, PET DDG images may still exhibit motion artefacts at the diaphragm if the CT is acquired in a different respiratory phase than the PET image. This study evaluates the combined use of PET DDG and a deep-learning model (AIR-PETCT) for elastic registration of CT (WarpCT) to the non attenuation- and non scatter-corrected PET image (PET NAC), enabling improved PET reconstruction.

methodsThe validation cohort included 20 patients referred for clinical FDG PET/CT, undergoing two CT scans: a free respiration CT

resultsAIR-PETCT was robust and generated consistent WarpCTs when registering different CTs to the same PET NAC. The use of WarpCT instead of CT consistently led to equivalent or improved PET image quality. The algorithm significantly reduced "banana" artefacts and improved lesion-to-background ratios around the diaphragm. The blinded clinicians clearly preferred PET DDG images reconstructed using WarpCT.

conclusionAIR-PETCT effectively reduces respiratory motion artefacts from PET images, while improving lesion contrast. The combination of PET DDG and WarpCT holds promise for clinical application, improving PET image evaluation and diagnostic confidence.

Indexed as

Image Processing, Computer-AssistedPositron Emission Tomography Computed TomographyRespiratory-Gated Imaging TechniquesAdultAgedArtifactsDeep LearningFemaleHumansMaleMiddle AgedMovementArtificial intelligenceAttenuation correctionData driven gatingDeep learningNeural networksPositron emission tomography computed tomography

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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.